Rhizoma Drynariae
Source
Rhizome of Drynaria fortunei (Kunze) J. Sm. or D. baron ii (Christ) Diels,
family Polypodiaceae.
Characteristics
Rhizome
flat-linear, branching, 5-15 cm long, 1.0-1.5 cm wide; surface covered
with brown scale hairs, leaf scars rounded. Prepared by oblique cutting,
section red-brown when dried, spotted vascular bundles in annular arrangement.
Soft in texture and easily broken. Bitter in taste, warm in nature, and
attributive to liver and kidney channels.
Indication
1. Tonify the liver and kidney, activate blood circulation and expel wind-dampness:
For deficiency of liver and kidney or sluggishness of blood circulation
manifested as rheumatism and weakness of the back and knees, and kidney-deficiency
syndrome manifested as toothache, dizziness, tinnitus or chronic diarrhea.
Now also used for the poisoning of streptomycin and kanamycin with symptoms
of headache, tinnitus and deafness.
2.
Restore the bones and tendons: For fracture and trauma. In addition, topical
application of fresh herb is used for tinea infection and its wine preparation
for baldness.
Pharmacological
Action
1. Diminishing the toxicity of kanamycin to guinea-pig's cochlea.
2. Decreasing the levels of serum cholesterol and triglyceride.
3. Hindering the formation of arteriosclerotic deposits in the vessels.
Administration Decoction: 10-15g.